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Gentoo Linux Security Advisory                           GLSA 200410-05
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  Severity: High
     Title: Cyrus-SASL: Buffer overflow and SASL_PATH vulnerabilities
      Date: October 07, 2004
      Bugs: #56016
        ID: 200410-05

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Synopsis
========

Cyrus-SASL contains two vulnerabilities that might allow an attacker to
completely compromise the vulnerable system.

Background
==========

Cyrus-SASL is an implementation of the Simple Authentication and
Security Layer.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /   Vulnerable   /                Unaffected
    -------------------------------------------------------------------
  1  dev-libs/cyrus-sasl     <= 2.1.18-r1                 >= 2.1.18-r2

Description
===========

Cyrus-SASL contains a remote buffer overflow in the digestmda5.c file.
Additionally, under certain conditions it is possible for a local user
to exploit a vulnerability in the way the SASL_PATH environment
variable is honored (CAN-2004-0884).

Impact
======

An attacker might be able to execute arbitrary code with the Effective
ID of the application calling the Cyrus-SASL libraries.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Cyrus-SASL users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=dev-libs/cyrus-sasl-2.1.18-r2"
    # emerge ">=dev-libs/cyrus-sasl-2.1.18-r2"

References
==========

  [ 1 ] CAN-2004-0884
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0884

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200410-05.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/1.0

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